1042819 has 2 divisors, whose sum is σ = 1042820. Its totient is φ = 1042818.

The previous prime is 1042799. The next prime is 1042829. The reversal of 1042819 is 9182401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042819 - 2¹¹ = 1040771 is a prime.

It is a super-2 number, since 2×1042819² = 2174942933522, which contains 22 as substring.

1042819 is a lucky number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1042793 and 1042802.

It is not a weakly prime, because it can be changed into another prime (1042829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521409 + 521410.

It is an arithmetic number, because the mean of its divisors is an integer number (521410).

2^1042819 is an apocalyptic number.

1042819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042819 is an equidigital number, since it uses as much as digits as its factorization.

1042819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1042819 is about 1021.1850958568. The cubic root of 1042819 is about 101.4073993462.

The spelling of 1042819 in words is "one million, forty-two thousand, eight hundred nineteen".